SIP Calculator: How Much Can Investing Rs 20 A Day Earn You In 20 Years?

The 20-20-20 formula is based on three principles — start small with Rs 20 per day, increase your investment by 20% every year and stay invested for 20 years. (Image source: Envato)

For many of us, investing often feels like a big leap requiring large sums of money. But a simple formula, popularly known as the 20-20-20 strategy, shows that you don't need to start big to build wealth. In fact, all it takes is investing Rs 20 a day.

What Is The 20-20-20 Formula?

The 20-20-20 formula is based on three principles — start small with Rs 20 per day, increase your investment by 20% every year and stay invested for 20 years. With a long-term view and consistent top-ups, this strategy taps into the power of compounding to deliver impressive results.

What Rs 20 A Day Can Earn You In 20 Years

Let's break it down. If you invest Rs 20 a day through a Systematic Investment Plan (SIP) in an equity mutual fund, it adds up to Rs 7,200 in the first year — assuming an average of 30 days per month over 12 months.

Increase your contribution by 20% each year and continue this for two decades. Assuming an average annual return of 14% — a figure that's been within reach for many large-cap mutual funds in recent years — your total investment would be around Rs 13.44 lakh over 20 years.

So, what's the return? This modest contribution could grow into a corpus of nearly Rs 32 lakh by the end of the term.

The Numbers At A Glance

Year one investment: Rs 7,200
Annual increase: 20%
Total investment over 20 years: around Rs 13.44 lakh
Expected annual rate of return: 14%
Estimated final corpus: around Rs 31.71 lakh

Popularity Of SIPs

According to the Association of Mutual Funds in India (AMFI), the total number of outstanding SIP accounts stood at 1,005.39 lakh as of March 2025. In the same month alone, 40.19 lakh new SIPs were registered. These figures highlight just how popular SIPs have become among investors across the country.

The 20-20-20 approach is more than just a formula — it's a mindset shift. With consistency, patience and the discipline to gradually increase your SIP contributions, achieving financial goals like funding your child's education, buying a home or retiring comfortably becomes far more realistic.

So, the next time you wonder if Rs 20 can make a difference, let the SIP calculator do the talking.